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題名 | 活體阿基里斯腱之機械性質檢測=Mechanical Properties of Achilles Tendon in Vivo |
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作者姓名(中文) | 李明機; 王崇禮; 邵耀華; | 書刊名 | 國立臺灣大學工程學刊 |
卷期 | 91 2004.06[民93.06] |
頁次 | 頁117-122 |
專輯 | 應用力學專輯 |
分類號 | 416.26 |
關鍵詞 | 阿基里斯腱; 機械特性; 超音波; 共振頻率; Ultrasound; Achilles tendon; Mechanical properties; Resonant frequency; |
語文 | 中文(Chinese) |
中文摘要 | 非侵襲性肌腱韌帶功能檢測技術對於骨科臨床醫學非常的重要。本實驗採用模態測試方法,利用超音波系統與加速度計系統結合,找出人體中最容易受傷的阿基里斯腱之共振頻率,作為臨床診斷的評估工具。基於阿基里斯腱在解剖學上同時連結了腓腸肌、比目魚肌與跟骨,可將其視為一個三弦聯結系統。本研究以三弦之力學理論應用於阿基里斯腱之生醫物理模型,以生理幾何參數評估阿基里斯腱的共振頻率。三弦之物理模型顯示成人阿基里斯腱共振頻率大約為24Hz,而實驗研究顯示阿基里斯腱的共振頻率大約是在23.0Hz ~ 34.7Hz之範圍 (N = 10),而且張力增加時,共振頻率有增加的趨勢。為反應阿基里斯腱之功能,我們提出狀態指標SI作為診斷與術後回復的依據:當SI之值愈大,代表受測者阿基里斯腱好壞邊的機械性質差異較大。 |
英文摘要 | Non-invasive functional diagnosis of tendon and ligament in vivo is very important for clinical orthopedics. In this study, a modal testing system that combining the ultrasonic imaging and the accelerometers was used to estimate the resonant frequency of Achilles tendon. The Achilles tendon that connects with soleus, gastrocnemius muscle and calcaneus behaves like a “three stings system”. A physical model of the Achilles tendon has been constructed which reveals that the resonant frequency of the Achilles tendon in young human subjects is about 23.0Hz ~ 34.7Hz (N = 10). Fundamental resonant frequency correlates inversely with the length of the tendon and increases with its tension. A dimensionless state index (SI) was suggested to reflect the function of Achilles tendon after reconstruction. A higher SI represents a greater difference in resonant frequency between the compact Achilles tendon and the injured one. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。